DE216668C - Process for the representation of burgundy to violet vat dyes of the anthracene series - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

- JVl 216668 CLASS 22 h. GROUP

the anthracene series.

Addendum to patent 162824 of October 30, 1903.

Patented in the German Empire on November 8, 1908. Longest duration: October 29, 1918.

If ρ - aminoalkoxyanthraquinones are condensed according to the method of the main patent with halogen anthraquinones or p-haloalkoxyanthraquinones with aminoanthraquinones, this is how you get to new dyes, cotton in beautiful, genuine, burgundy colors to dye violet nuances in a way that has not been possible before with other dyes of this group in the same shade and authenticity were achieved. This is how the dianthraquinonyls obtained from p-substituted alkoxyanthraquinones color z. B. much more bluish than that in French patent 390677 described products obtainable from heteronuclear derivatives of alkoxyanthraquinones.

Example 1.

30 parts of 1 · 4-aminomethoxyanthraquinone are mixed with 30 parts of ß-chloroanthraquinone, 4 parts Copper chloride, 25 parts of dehydrated sodium acetate, and 300 parts of naphthalene approximately Cooked for 6 hours. The dye is completely deposited by adding solvent naphtha. After cooling to 40 to 50 °, it is filtered off with suction, washed with solvent naphtha, glacial acetic acid, hydrochloric acid and water and dried. A dark claret-colored powder is obtained in this way in a very good yield.

Example 2.

30 parts are condensed as in Example 1 ι · 4-Bromomethoxyanthraquinone with 23 parts 2-Aminoanthraquinone, the same product as in Example 1 is obtained.

Example 3.

50 parts of 1x4-aminomethoxyanthraquinone are condensed in the same manner as in Example 1 with 25 parts of 2 · 6-dichloroanthraquinone, a brown-violet powder is obtained which the condensation product of 2 molecules ι · 4 - aminomethoxyanthraquinone with ι Molecule 2 · 6 - represents dichloroanthraquinone.

Example 4.

Are in the manner indicated in Example 1 50 parts of 1 · 4 aminomethoxyanthraquinone condensed with 25 parts of 2 ^ -dichloroanthraquinone, a dark purple color is obtained Powder. The dye is the condensation product of 2 molecules of 1 · 4-aminomethoxyanthraquinone with ι molecule 2 · 7-dichloroanthraquinone.

Analogous beautiful and genuine products are obtained by condensation of other p-methoxyanthraquinone derivatives.

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The properties of these and some other products obtained analogously are shown below Table listed.

5
Product from solution
in more concentrated
sulfuric acid colour
the substance
in paste coloring
on unheated
cotton ίο ι. 4-aminomethoxyanthraquinone
-j- 2-chloroanthraquinone
or ■
ι ■ 4-methoxybromoanthraquinone
+ 2-aminoanthraquinone blue green bordeaux bordeaux ! 5 2 molecules ι · 4-aminomethoxyanthraquinone
+ ι molecule 2 · 6-dichloroanthraquinone green Blue bordeaux bordeaux 2 molecules of 1 · 4-aminomethoxyanthraquinone
+ ι molecule 2 · 7-dichloroanthraquinone green Blue violet violet ²⁰ ι · 4-aminomethoxyanthraquinone
+ 1 · δ-methoxychloranthraquinone blue bordeaux bordeaux 4-aminomethoxyanthraquinone
+ ι · ö-Methylaminochloranthraquinone blue violet violet ever
ι · S-dimethoxy ^ -aminoanthraquinone
-f- 2-chloroanthraquinone blue purple red bordeaux ι · 8-Dimethoxy-4 · 5-diaminoanthraquinone
+ 2 molecules of 2-chloroanthraquinone
on blue green violet blue violet

Claims (1)

Patent claim: Process for the representation of bordeaux colored to purple vat dyes of the anthracene series, consisting in that man ρ - aminoalkoxyanthraquinones with Halogenanthraquinones or ρ - haloalkoxyanthraquinones with aminoanthraquinones according to the method of patent 162824 with the addition of contact substances warmed up.